<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格</title>
</head>
<body>
<table border="1" cellspacing="0" cellpadding="5px" width="200px" align="center">
    <thead>
    <tr align="center">
        <th>姓名</th>
        <td colspan="2"><b>年龄</b></td>
        <!--<td>性别</td>-->

    </tr>
    </thead>
    <tbody>
    <tr align="center">
        <td align="left">张三</td>
        <td>20</td>
        <td>男</td>
    </tr>
    <tr>
        <td rowspan="2">李四</td>
        <td>21</td>
        <td>男</td>
    </tr>
    <tr>
        <!-- <td>王五</td>-->
        <td>21</td>
        <td>女</td>
    </tr>
    </tbody>
</table>

</body>
</html>